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[Serum ferritin in iron overload].

J P Kaltwasser1

  • 1Zentrum der Inneren Medizin, Johann Wolfgang Goethe-Universität, Frankfurt a. Main, BRD.

Folia Haematologica (Leipzig, Germany : 1928)
|January 1, 1987
PubMed
Summary

Serum ferritin levels correlate with stored iron, aiding diagnosis even with uncomplicated iron overload. However, other conditions can elevate ferritin, necessitating comprehensive patient data for accurate interpretation.

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Area of Science:

  • Biochemistry
  • Clinical Chemistry
  • Hematology

Background:

  • Serum ferritin is a key indicator of iron storage in the body.
  • Accurate assessment of iron levels is crucial for diagnosing and managing various health conditions.

Purpose of the Study:

  • To evaluate the diagnostic utility of serum ferritin as a marker for iron overload.
  • To explore the relationship between serum ferritin and stored iron, considering non-linear correlations and potential confounding factors.

Main Methods:

  • Utilized sensitive immunochemical methods to quantify serum ferritin in circulating blood.
  • Analyzed the correlation between serum ferritin levels and the amount of iron stored in the organism.
  • Reviewed established diagnostic criteria and potential interfering factors in serum ferritin testing.

Main Results:

  • Serum ferritin demonstrates a direct, quantitative correlation with stored iron, despite a non-linear, exponential relationship.
  • The diagnostic value of serum ferritin for iron overload is largely unaffected by this non-linear correlation.
  • Identified specific indications for using serum ferritin in diagnosing iron overload.
  • Acknowledged that certain diseases can elevate serum ferritin without concurrent tissue iron overload, and the 'high dose hook effect' can cause false results.

Conclusions:

  • Serum ferritin is a valuable diagnostic tool for assessing iron overload.
  • Interpretation of serum ferritin levels requires consideration of potential confounding factors and other clinical information.
  • Comprehensive patient evaluation is essential for accurate diagnosis when using serum ferritin as an isolated laboratory test.

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